| 黔北务川丰乐铝土矿床地质特征及沉积环境探讨 |
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| 引用本文： | 罗俊峰,王林,谢樨.黔北务川丰乐铝土矿床地质特征及沉积环境探讨[J].矿产与地质,2016(3):421-425. |
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| 作者姓名： | 罗俊峰 王林 谢樨 |
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| 作者单位： | 贵州省有色金属和核工业地质勘查局地质矿产勘查院,贵州 贵阳,550005 |
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| 基金项目： | 贵州省公益性、基础性研究项目([2007]-172)，国家十二五科技支撑项目((2011BAB04B04)资助。) |
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| 摘 要： | 丰乐铝土矿床位于黔北务正道铝土矿成矿带的南东端,是近年在铝土矿勘查的空白区新探明的中型矿床。勘查发现矿床中含矿岩系顶部拥有不含或偶含炭质岩系的地质特征,与务正道地区其它铝土矿床存在差异性。微量元素Cr/Ni判别显示了含矿岩系的多物源性,V/Zr及Sr/B揭示该区具有海相―陆相或过渡相―海相的沉积特征。结合前人研究成果综合分析认为,该区沉积环境为受海侵影响的近滨海湖泊―沼泽相环境。
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| 关 键 词： | 铝土矿 矿系地质特征 沉积环境 丰乐 黔北 |
Geological characteristics and sedimentary environment of Fengle Bauxite deposit in Wuchuan of Northern Guizhou |
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| Abstract: | Fengle bauxite deposit is located at the southeast end of Wuchuan-Zhengan-Daozhen bauxite metal-logenic belt in Northern Guizhou,and it is a medium-sized deposit which is newly discovered in the explora-tion blank area of bauxite in recent years.The exploration works reveal that the top of ore-bearing rock se-ries has no or little carbonaceous rock series,and this is different from other bauxite deposits in Wuchuan-Zhengan-Daozhen area.Discrimination of microelements Cr and Ni indicates that the ore-bearing rock series has multiple source.According to the results of V/Zr and Sr/B discrimination,this area has marine-conti-nental or transition-marine sedimentary characteristics.In consideration of the previous works of predeces-sors,it appears that the sedimentary environment of this area is a near coastal lake-swamp facies environ-ment which is affected by transgression of sea.. |
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| Keywords: | bauxite geologic characteristics sedimentary environment Fengle Northern Guizhou |
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